Geochemistry of W-bearing granitic rocks from Shilovo-Konevsky group of massifs (Middle Urals)

The new data about trace elements (ICP-MS) in W-bearing granitic rocks in Shilovo-Konevsky group of massifs in the eastern part of the East-Uralian zone in Middle Urals are presented. The results demonstrate that the Uralian W-bearing leucogranites from Shilovo-Konevsky group of massifs are very close to W-bearing leucogranites from «model» rare-metal provinces of the world in major elements. The main differences are: larger Na2O content relative to K2O in Uralian leucogranites, which is explained by greater depth of formation, and less degree of granitic melt fractional crystallization, which is explained both by lower fluorine content and by less evolved of continental crust in the Urals.